High Frequency

Frequency Range 10 MHz to 40 GHz

Bias Tees help add/remove DC current or voltage to/from RF circuits without impacting the RF signal. Typical applications include biasing active antennas, amplifiers and laser diodes, and for DC blocking or return in broadband microwave, RF and data communications. TTE’s BTHF Series is designed specifically for applications requiring high frequency performance. BTHF parts address frequencies from 10 MHz to 40 GHZ. They are provided with SMA female connectors or 2.92mm female connectors, depending on frequency range.  Please contact TTE for additional options.

Part Number Frequency Range (GHz) Insertion Loss TYP (dB) Insertion Loss MAX (dB) DC Port Isolation MIN (dB) DC Port Isolation TYP (dB) Return Loss MIN (dB) Return Loss TYP (dB) VSWR MIN VSWR TYP DC Current (mA) MAX
BTHF-27G 0.01 – 27.5 1.3 1.5 25 30 15 20 1.5: 1 1.2 : 1 500
BTHF-40G 0.01 – 40.0 2.5 3.0 25 30 12 15 1.7: 1 1.5 : 1 250


Operating Temperature Range:
-55°C to +100°C

High frequency design to 40 GHz

Superior broadband performance achieved with high-quality components and manufacturing processes

Very low insertion loss for entire bandwidth (< 1dB) Minimal return loss and VSWR characteristics across frequency range Matched to 50Ω and measured in a 50Ω test set-up Extremely flat gain response (no "suck-out") over frequency range Provided with connectors:

  • SMA female for BTHF-27G
  • 2.92mm female for BTHF-40G

All of TTE’s products are “made in the USA”.   Most are delivered within 2-3 weeks.  Expedited lead times of 3-5 days are available on many products.  Please call 1-716-532-2234 (or 1-310-478-8224) or email tte@tte.com for assistance.  More information about TTE’s custom design expertise is provided in Capabilities.